Abstract: A support strut assembly comprises a block with a first surface comprising a ball transfer, a second surface opposite the first surface, a first wall extending from a first edge of the second surface, and a second wall parallel to the first wall and spaced apart by a gap. A magnet is affixed to the first wall, and a second friction reducing component such as a wheel or a ball bearing mounted upon a shaft is deposited within the gap. Other friction reducing components may include a rotatable sphere, a fixed shaft, a rotatable shaft, a wheel, a bearing, or a glide strip. At least one of the two walls may further comprise a cavity facing into the gap. The shaft is preferably embedded within the block and a cavity exposed a grooved portion of the shaft to allow a snap ring to lock the shaft within the block.

Abstract: A support strut assembly comprises a block with a first surface comprising a ball transfer, a second surface opposite the first surface, a first wall extending from a first edge of the second surface, and a second wall parallel to the first wall and spaced apart by a gap. A magnet is affixed to the first wall, and a second friction reducing component such as a wheel or a ball bearing mounted upon a shaft is deposited within the gap. Other friction reducing components may include a rotatable sphere, a fixed shaft, a rotatable shaft, a wheel, a bearing, or a glide strip. At least one of the two walls may further comprise a cavity facing into the gap. The shaft is preferably embedded within the block and a cavity exposed a grooved portion of the shaft to allow a snap ring to lock the shaft within the block.

Abstract: An extendable strut assembly comprises a nested series of square or rectangular beams, the centermost of which may be a solid bar and all others are hollow sections. Glide strips of predetermined thicknesses take up the clearances between the beams and can be affixed to the beams by adhesive, so that beam surfaces run smoothly on the glide strips and the strut assembly can be extended and retracted with ease.

Abstract: A rolling cart has a wheeled frame, telescoping vertically extendable members with glide strips, and a tiltable frame having glide strips interspersed with transfer balls to easily slide slabs or sheet materials for construction such as when installing countertops. The tiltable frame includes retractable lifter feet which support a slab in transit but drop below the level of the slab automatically when the tiltable frame is tilted to horizontal.

Abstract: A rolling cart has a wheeled frame, telescoping vertically extendable members with glide strips, and a tiltable frame having glide strips interspersed with transfer balls to easily slide slabs or sheet materials for construction such as when installing countertops. A method is also described for measuring a minuend desired install height, subtracting a geometrically predetermined subtrahend, and adjusting the height from a floor surface to a pivot axis on the cart to equal the difference, said adjustment being effected by powered lifting means incorporated or ancillary to the cart.

Abstract: An extendable strut assembly comprises a nested series of square or rectangular beams, the centermost of which may be a solid bar and all others are hollow sections. Glide strips of predetermined thicknesses take up the clearances between the beams and can be affixed to the beams by adhesive, so that beam surfaces run smoothly on the glide strips and the strut assembly can be extended and retracted with ease.

Abstract: A rolling cart has a wheeled frame, telescoping vertically extendable members with glide strips, and a tiltable frame having glide strips interspersed with transfer balls to easily slide slabs or sheet materials for construction such as when installing countertops. The tiltable frame includes retractable lifter feet which support a slab in transit but drop below the level of the slab automatically when the tiltable frame is tilted to horizontal.

Abstract: A rolling cart has a wheeled frame, telescoping vertically extendable members with glide strips, and a tiltable frame having glide strips interspersed with transfer balls to easily slide slabs or sheet materials for construction such as when installing countertops. A method is also described for measuring a minuend desired install height, subtracting a geometrically predetermined subtrahend, and adjusting the height from a floor surface to a pivot axis on the cart to equal the difference, said adjustment being effected by powered lifting means incorporated or ancillary to the cart.

Abstract: A rolling cart has a wheeled frame, telescoping vertically extendable members with glide strips, and a tiltable frame having glide strips interspersed with transfer balls to easily slide slabs or sheet materials for construction such as when installing countertops. A method is also described for measuring a minuend desired install height, subtracting a geometrically predetermined subtrahend, and adjusting the height from a floor surface to a pivot axis on the cart to equal the difference, said adjustment being effected by powered lifting means incorporated or ancillary to the cart.

Abstract: A rolling cart has a wheeled frame, telescoping vertically extendable members with glide strips, and a tiltable frame having glide strips interspersed with transfer balls to easily slide slabs or sheet materials for construction such as when installing countertops. A method is also described for measuring a minuend desired install height, subtracting a geometrically predetermined subtrahend, and adjusting the height from a floor surface to a pivot axis on the cart to equal the difference, said adjustment being effected by powered lifting means incorporated or ancillary to the cart.